3 years ago

What is the percent of 15 books to 21 books

Mathematics

1 answer:

Jobisdone [24]3 years ago

5 0

40% since the number of books went UP it is a percent increase

You might be interested in

<img src="https://tex.z-dn.net/?f=%20%5Csqrt%5B3%5D%7B80%7D%20" id="TexFormula1" title=" \sqrt[3]{80} " alt=" \sqrt[3]{80} " ali

Marianna [84]

Start by decomposing the number inside the root into primes

Then group the terms into cubes if possible

$\begin{gathered} 80=2\cdot2\cdot2\cdot2\cdot5 \\ 80=2^3\cdot2\cdot5 \\ 80=10\cdot2^3 \end{gathered}$

rewrite the root

$\sqrt[3]{80}=\sqrt[3]{10\cdot2^3}$

then cancel the terms that are cubes and bring them out of the root

$\sqrt[3]{80}=2\sqrt[3]{10}$

7 0

1 year ago

A smoothie recipe calls for 4 cups of milk, 3 frozen bananas and 2 tablespoons of chocolate syrup. Write 3 different sentences t

faltersainse [42]

Answer:

cool good me hungry i am kinda hungry

Step-by-step explanation:

8 0

3 years ago

Brooke has to set up 70 chairs in equal rows for the class talent show. But, there is not room for more then 20 rows. What are t

grin007 [14]

Answer:

The answer is 2, 5, 7, 10, and 14.

Step-by-step explanation:

Let x be the number of rows. There is not room for more than 20 rows:

x ≤ 20

Since all rows must be equal, when we divide 70 by x, we must get a whole number. So, we must find all divisors of 70 smaller or equal to 20 and they are: 2, 5, 7, 10, and 14.

So, the possibilities are:

2 rows with 35 chairs in each row

5 rows with 14 chairs in each row

7 rows with 10 chairs in each row

10 rows with 7 chairs in each row

14 rows with 5 chairs in each row

Hope this helps!!

~CoCo

7 0

3 years ago

Could the students use 24 paper squares to make quilts with 5 rows of paper squares? How do you know?

iogann1982 [59]

24/5 = 4.8 No because there is a remainder

3 0

3 years ago

- 6(x + 2) = 30<br> - 6(x + 2) = 30<br> - 6x + (- 12) = 30<br> The solution is -

RSB [31]

Answer:

-7

Step-by-step explanation:

7 0

3 years ago

Read 2 more answers